Roller skid



FIG. 1 is a perspective view of a roller skid showing my new design;

FIG. 2 is a front elevation view;

FIG. 3 is a back elevation view;

FIG. 4 is a top view;

FIG. 5 is a bottom view;

FIG. 6 is a left side elevation view; and,

FIG. 7 is a right side elevation view.

CLAIM The ornamental design for a roller skid, as shown and described.